Geothermal.contractors

Sensenig & Weaver Well Drilling Inc. is a third-generation, family-owned geothermal and well drilling contractor based in Denver, Pennsylvania, serving Lancaster County and surrounding counties since 1973. The company provides geothermal drilling for closed-loop and open-loop ground source heating and cooling systems, including borehole drilling, trenching, excavating, HDPE line fusion, and HVAC integration. Its licensed, insured technicians serve residential and commercial customers across Lancaster, Berks, Lebanon, Chester, Dauphin, York, Cumberland, Montgomery, Delaware, and Schuylkill counties. Complementary services include water well drilling, pump servicing, hydrofracking, well grouting, borehole camera inspections, flow testing, and water certifications. Free estimates are available, with service offered Monday through Friday. Verified active operator per sensenigweaver.com (PA bundle audit 2026-06-01).